合众国际社驻白宫资深记者海伦·托马斯问我，“如果你有机会可以重来，你会穿上这个国家的军装吗？”
Helen Thomas of United Press International, the senior White House correspondent, asked me: if you had it to do over again, would you put on the nation's uniform?
据合众国际社7日报道，一名美国研究人员称，人类穿衣服始于17万年前，比人类迁移到气候更冷、纬度更高地区的时间早了7万年。
Modern humans started wearing clothing about 170,000 years ago, 70,000 years before they moved into colder climates and higher latitudes, according to a US researcher.
加利福尼亚州圣克鲁兹合众国际社报道，美国研究人员认为在礁石上进行频繁捕捞会导致海胆的迅猛繁殖，而过量的海胆则会破坏构成热带礁石系的珊瑚藻类。
SANTA CRUZ, Calif., Jan. 14 (UPI) — Overfishing of reefs leads to explosions in populations of sea urchins, which destroy coral algae that build tropical reef systems, U.S. researchers say.
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